Gunmen try to block transfer
Cartel gunmen burned vehicles, blocked streets and scattered road spikes across Matamoros, Tamaulipas, after Cárdenas was arrested on October 29. The attacks were intended to slow Mexican military forces, prevent them from reaching the airport with him and pressure the government to release him.
Authorities nevertheless took Cárdenas to the airport and flew him to Mexico City, where he is wanted on warrants related to extortion and cartel violence.
Tamaulipas security officials counted eight blockade locations in Matamoros and another four in neighboring Río Bravo, totaling 12 affected sectors. Cargo vehicles, public transportation vehicles and private cars were used to obstruct the roads.
Mexican press reports that day also described blockades along the Matamoros-Reynosa and Matamoros-Ciudad Victoria highways, as well as additional incidents in San Fernando, Jiménez, Padilla and El Barretal.
Schools cancel classes as consulate issues alert
The Tamaulipas Ministry of Education canceled afternoon classes at every educational level in Matamoros on October 29, 2026, saying the measure was needed to protect students and school communities.
In a security alert issued that day, the U.S. Consulate in Matamoros warned of law enforcement activity affecting roads and major intersections. It directed U.S. government employees to shelter in place and recommended that others nearby do the same.
Tamaulipas is under the U.S. State Department's highest travel advisory, Level 4, or "Do Not Travel," because of terrorism, crime and kidnapping.
Suspect's cartel role and previous case
Mexico's Security Minister Omar García Harfuch identified Cárdenas, also known as "El Titán" or "Axel," as second-in-command of Los Ciclones in an October 29, 2026, statement. The Gulf Cartel faction operates in Tamaulipas and works alongside Los Escorpiones.
The Gulf Cartel received a U.S. foreign terrorist organization designation in 2025. It is one of eight Mexican criminal groups with that designation.
Cárdenas is the son of José Alfredo "El Contador" Cárdenas Martínez, the Gulf Cartel's leader in Matamoros. His father remains in Mexican custody and is using legal injunctions to contest extradition to the United States.
El Contador is a nephew of Osiel Cárdenas Guillén, a former Gulf Cartel leader who founded the Los Zetas criminal organization and is imprisoned in Mexico.
Authorities said Axel Cárdenas was arrested previously in May 2023 and, in January 2024, was allowed to remain free while his case proceeded. He is also accused of involvement in a May 17 attack on federal protection officers that killed an officer assigned to U.S. Consulate security and injured several others.
